Feed-water-heating apparatus



Dec.. 22, 1925 1,566,799

1 .1. A. LE GAIN FEED WATER HEATING APPARATUS Filed Feb. 13. 1922Patented Dec. 22, 1925.

UNITED sfr-Aras PATENT oFFicE.

JOHN A.. LE GAIN, F MALDEN, MASSACHUSETTS, ASSIGNOR TO WORTHINGTON PUMPAND MACHINERY CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF VIR-GINIA..

FEED-WATER-'HEATING APPARATUS.

Application led February To all whom z't may concern.'

. Be it known that I, JOHN A. LE CMN, a citizen of the United States,residing at Malden. county of Middlesex, and State of Massachuseets,have invented certain new and useful Improvements in Feed-Water- HeatingApparatus, fully described and represented in the followingspecification and the` accompanying drawings. forming a part of the sameThis invention relates to feed water heaters for locomotive use andespecially to such a systemI as is described and claimed in` UnitedStatesLetters Patent 1,350,322, pat ented August 24, 1920 by T. C.McBride.

The especial object of the invention is to provide a simple, rigid andcompact unit Ior attachment to the locomotive boiler so constructed anddivided that the' interior Y thereof is readily accessible for cleaningand repairs b the removal of a comparatively small an light weightcasting.

For avfull understanding of the invention a detailed description of alocomotive feed ``5 water heating apparatus embodying all the featuresof the-jinvention in their preferred form will now be given inconnection with the accompanying drawing, and the features forming thelinvention then specifically pointed out in the claims.

In the drawing- Fig. 1 is a sectional elevation of the completeapparatus; p

Fig, 2 is a side elevation showing attach` ment to the locomotiveboiler; and

Figs. 3, 4, 5, 6 are sections respectively on lines 3-3, 4 4, 5 5 and6-6 of Fig. 1

` Referrin' to the drawing, A is the 'eat exchangel c amber or heaterproper to which steampas'ses through steam connection 11 and to whichcold water is delivered through passage 12 by the cold water su ply pumpB, the heater chamber inlet of t e passage 12 being controlled by asuitable. s ringpressed spray valve 13. The heat exc ange chamber 1sprovided with a bale 14 which aids in distributing the steam andprocures a better minglin of the steam and cold water.. The con ensedsteam and heated water pass through the baille 14 to a hot water tank C,C in which the bucket tank D is mounted, to which the heated water 13,1922. Serial Fo. 536,001.

passes by over-flow. l/Vithin'the bucket tank D vis fixed a vertical rodor stem l5, which is hollow throughout its lower portion, upon whlchslides a bucket type float d, the lower end of which controls aplurality of ports 1 connecting the-interior of the bucket el with thehollow portion 2 of the stemV 15 upon lowering ofthe bucket d.- The stem15 is also provided near its lower end with a plurality Aof ports 3connecting withv a chamber 16, through which the excess return nowpasses to cold water supply pump B under the control of one or. moresnctio valve 4. v

The lower part C of the hot water tank is connected by passage 19 to thesuction chamber 20 of the hot feed water pump G. Suitable-suction valves2l and 22 are seated in the upper end of the suction chamber 2() and areseparated by a partition 23 arranged to provide two pulsation passages24 and 25 connecting respectively the suction valves 21 and 22, one withthe lower end and the other with the upper end of the pump G. Above thesuction valves 21 and, 22 are mounted suitable discharge valves 26.through which the heated water passes through chamber 27 and passage 28to a sultab e delivery chamber, preferably formed as shown, comprisingtwo chambers E and J connected by passage 18 and located ulpon oppsitesides of the tank C'. The c amber is separated from the tank C C by4inclined partltion 17. The discharge con- `nection 29 1s provided withan interior extension 30 extended downward within the water in chamber Jand airfsealed thereby.

. The two chambers E and J thus form a cornbined air and deliverychamber, a large capacity being thus secured with a heater constructionof small dimensions.

The passage 28 preferably connects with the chamber J on the same sideat which extension 30 is located and in line with the passage 18connecting chambers E and J, so that any sediment carried by the waterwill be forced away from the extension 30 and collect within the chamberE and along the side of the chamber J opposite to .the extension 30, thewater delivered to the boiler through 29 thus being freed from sedimentand chamber E thus forming a :ag j

i v Sediment chamber. The pumps B and G are direct connected and drivenby a suitable steam engine cylinder K is secured yand a lower sectioncomprising the lower portion of the hot water chamber C, C', thecombined chambers Ev and J, and the hot water feed pump G, all of which,together with their connecting passages, are formed in a vslnglecasting, as shown.

The feed water heaterapparatus is supported as a unit from thelocomotive boiler L by suitable brackets 32 provided with feet 33engaging with Suitable feet 34 formed in the upper heater section forsecuring thereto by bolts, as shown.

I also provide suitable blow out openings i `5 closed by closures-.6,whereby the various chambers may readilyibe blown out andcleaned withoutdismantling the heater. In order to provide means'for cleanlng out thebucket tank D and the` chamber 16, I provide these with laterallyextending passages 7 and 8 providedrwith suitably closed blow` outopenings.

The operationqtif-v the construction will be understood fromfthe drawingand above description in connec'tic'n ,with Patent No. 1,350,322 abovereferred to.4 I Wha-t is claimed is 5 1. A feed water heaterv vunithaving an i upper section comprising aheater, a lower section suspended`from the lupper-` section v and comprisingva hot Iwater chamber, afloat tank, and a passage lfor delivery, of', excess water from thefloat tank, and means for attachment of the upper section to alocomotive boiler for support-of the unit by the upper section.

feed water heater unit having an upper section comprising a heater and acold water supply pump cast integrally, a lower sectionsuspended fromvthe upper section and comprising a hot water chamber and a hot waterfeed pum cast integrally, a vioat tank carried by the ower section, andmeans for attachment of the upper section to a locomotive boiler forsupport ofthe unit by the upper section. i

3. A feed water heater unit having an upper section comprising a hea-terand a cold water sup ly pump, a lower section lsuspended from e uppersection and comprising a `hot water chamber, a float tank, an excesschamber, and a Awoef/ea water passage connecting the float tankand coldwater supply, and means for attachment .of the upper section to alocomotive boiler for support ofthe unit bythe upperA section.,v n

4. A feed water heater unit having an upper section comprlsing a heaterand a cold water supplyjpump, a lower section suspended from the up ersection and comprising a hot water c amber, asediment chamber and a hotwater feed pump, and means -for attachment of the. upper section to aAlocomotive boiler for supporting the unit by the upper section.

5. A 'feed water heater unit having an v 6. A feed water heater unithaving 'ani upper sectioncomprising a heater and a` hot water chambercast integrally, and aff lower section comprising a hot water chamber.,suction and delivery passages, and a.`

sediment and air chamber cast integrally.

' 7. A feed water heaterrunit having anl upper section comprising aheater, a hot waterchamber and a cold water supply pump cast'integrally,and a 'lower section comprising a hot water chamber, suction anddelivery passages, a sediment and air hot water. feed pump castintegrall l i i '8J-AL iyeed water heaterhaving chamber C receivingtheheater water, 'pump cylinder G,'suction chamber 20, delivery chamber 2T,and air chamber J, all arranged substantially in line, and passages 19and 28 around the oppositey sides of the pump cylinderand connectingrespectively chambers C' and 20, and chambers 27 and J.

9. 'A feed water leater having chamber C receivingthe heater water, pumpcylinder G, suction chamber 20, delivery chamber' 27 and sediment andair chambers E and J, all arranged substantially in line, passages 19"and 28 around the oppositeV sides of the pump cylinder and connectingrespectively chambers C vand-20 and chambers 27 and J, and passage 18around chamber C connecting chambers E and J i In testimony vwhereof, I,have hereunto set my hand.

' JoHN'lL LE GAIN.

